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Abstract

A library architecture wherein two independent picker assemblies move around a cylindrical cartridge carousel which is either stationary or rotatable provides a higher degree of independence between the two pickers.

Country

United States

Language

English (United States)

This text was extracted from an ASCII text file.

This is the abbreviated version, containing approximately
100% of the total text.

Multiple Rotary Picker Assemblies

A library
architecture wherein two independent picker
assemblies move around a cylindrical cartridge carousel which is
either stationary or rotatable provides a higher degree of
independence between the two pickers.

The preferred embodiment of this invention, as
illustrated in Figs. 1
and 2, comprises:

o A cylindrical
cartridge carousel 1 suspended to a stationary
frame 2 by a shaft 3 aligned with the
carousel center line.

o A rotatable
platform 4 which can be rotated around the shaft 3 by
a motor 5. Platform 4 is mounted to shaft 3 via a hollow
shaft 6
through which shaft 3 is inserted.

o Independent
picker assemblies 7 which are mounted to shaft 6 and
rotate around it. Each picker assembly is driven by its own
motor mounted to platform 4. The pickers move in tangential and
axial directions to reach any point
on the carousel 1. During
normal operations, the platform 4
remains still while the pickers
7 are in action. If one of the picker assemblies is out of
action but can still be moved freely,
the other picker can push
it away to gain access to any
cartridge cell. However, if it is
locked up, the platform 4 takes over
and moves the locked picker
assembly away. It is obvious that the carousel 1 can be make
movable while the platform 4 becomes
stationary to gain the same
effect.